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Scalable and sequential inference of the neutron star equation of state with the Einstein Telescope
Thibeau Wouters, Thomas C. K. Ng, Hauke Koehn +4
Future gravitational-wave observatories such as the Einstein Telescope will detect tens of thousands of binary neutron star mergers per year, making gravitational waves a dominant…
Binary neutron stars in the next-generation era: Multi-messenger detection prospects and constraints on the equation of state, mass distribution, and cosmology
Hauke Koehn, Thibeau Wouters, Gilad Sadeh +5
Next-generation gravitational-wave (GW) observatories will provide crucial insights into the nature of neutron star (NS) matter and the cosmological expansion history. We estimate…
Mitigating Systematic Errors in Parameter Estimation of Binary Black Hole Mergers in O1-O3 LIGO-Virgo Data
Sumit Kumar, Max Melching, Frank Ohme +3
Systematic errors in the parameter estimation (PE) of gravitational wave (GW) mergers can arise from various sources, including waveform systematics, noise mischaracterization, dat…
Incorporating neutron star physics into gravitational wave inference with physics-informed priors using normalizing flows
Thibeau Wouters, Peter T. H. Pang, Tim Dietrich +1
Bayesian inference, widely used in gravitational-wave parameter estimation, depends on the choice of priors, i.e., on our previously existing knowledge. However, to investigate neu…
Revealing tensions in neutron star observations with pressure anisotropy
Peter T. H. Pang, Stephanie M. Brown, Thibeau Wouters +1
Pressure isotropy, i.e., equality between radial and tangential pressure, is often assumed when studying neutron stars. However, mechanisms such as pion/kaon condensation, magnetic…
Revealing the strength of three-nucleon interactions with the Einstein Telescope
Henrik Rose, Nina Kunert, Tim Dietrich +5
Three-nucleon forces are crucial for the accurate description of nuclear systems, including dense matter probed in neutron stars. We explore nuclear Hamiltonians that reproduce two…
An updated nuclear-physics and multi-messenger astrophysics framework for binary neutron star mergers
Peter T. H. Pang, Tim Dietrich, Michael W. Coughlin +18
The multi-messenger detection of the gravitational-wave signal GW170817, the corresponding kilonova AT2017gfo and the short gamma-ray burst GRB170817A, as well as the observed afte…
On the detection and precise localisation of merging black holes events through strong gravitational lensing
Ewoud Wempe, Léon V. E. Koopmans, A. Renske A. C. Wierda +2
To unlock the full spectrum of astrophysical and cosmological applications of gravitational-wave detections, it is essential to localise the associated black-hole mergers to high p…
Beyond the detector horizon: Forecasting gravitational-wave strong lensing
A. Renske A. C. Wierda, Ewoud Wempe, Otto A. Hannuksela +2
When gravitational waves pass near massive astrophysical objects, they can be gravitationally lensed. The lensing can split them into multiple wave-fronts, magnify them, or imprint…
Nuclear-Physics Multi-Messenger Astrophysics Constraints on the Neutron-Star Equation of State: Adding NICER's PSR J0740+6620 Measurement
Peter T. H. Pang, Ingo Tews, Michael W. Coughlin +3
In the past few years, new observations of neutron stars and neutron-star mergers have provided a wealth of data that allow one to constrain the equation of state of nuclear matter…
Searches for gravitational waves from known pulsars with S5 LIGO data
The LIGO Scientific Collaboration, The Virgo Collaboration, B. P. Abbott +678
We present a search for gravitational waves from 116 known millisecond and young pulsars using data from the fifth science run of the LIGO detectors. For this search ephemerides ov…
Search for gravitational-wave bursts associated with gamma-ray bursts using data from LIGO Science Run 5 and Virgo Science Run 1
LIGO Scientific Collaboration, Virgo Collaboration, B. P. Abbott +665
We present the results of a search for gravitational-wave bursts associated with 137 gamma-ray bursts (GRBs) that were detected by satellite-based gamma-ray experiments during the…